| From: | David Fetter <david(at)fetter(dot)org> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Gurjeet Singh <singh(dot)gurjeet(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Greg Stark <greg(dot)stark(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Suppressing occasional failures in copy2 regression test |
| Date: | 2009-06-15 16:30:37 |
| Message-ID: | 20090615163037.GF20647@fetter.org |
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| Lists: | pgsql-hackers |
On Mon, Jun 15, 2009 at 11:34:38AM -0400, Tom Lane wrote:
> David Fetter <david(at)fetter(dot)org> writes:
> > * It's going to a lot of trouble to allow for the possibility of both
> > unordered results and of duplicate lines. If we disallow duplicate
> > lines in unordered result sets, we can get a big speed gain by using
> > hash-based comparisons.
>
> Why not just sort the lines and compare?
Good point :)
Cheers,
David.
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David Fetter <david(at)fetter(dot)org> http://fetter.org/
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